Muhammad GaladimaA., DabaiM. U., AhmadB. R., and UmarJ. I., “UTILIZATION OF WASTE FOIL AND CARBIDE SLAG AS HETEROGENEOUS CATALYST FOR IN-SITU TRANSESTERIFICATION OF Ricinus Communis (CASTOR SEEDS)”, FJS, vol. 6, no. 6, pp. 303 - 310, Feb. 2023.